GATE 2025 · CS2 - Afternoon
Let Σ = {a,b,c}. For x in Σ*, and α in Σ, let #α(x) denote the number of occurrences of α in x.
Which one or more of the following option(s) define(s) regular language(s)?
Related Theory of Computation PYQs
Consider the following context-free grammar G, where S, A, and B are the variables (non-terminals), a and b are the terminal symbo…
A regular language L is accepted by a non-deterministic finite automaton (NFA) with n states. Which of the following statement(s) …
Consider the following two languages over the alphabet {a,b}: L1 = { α β α | α in {a,b}+ AND β in {a,b}+ } L2 = { α β α | α in {a}…
Consider the following two languages over the alphabet {a,b,c}, where m and n are natural numbers. L1 = {\(a^{m}\) \(b^{m}\) c^(m+…
Which ONE of the following languages is accepted by a deterministic pushdown automaton?
Let G1, G2 be Context Free Grammars (CFGs) and R be a regular expression. For a grammar G, let L(G) denote the language generated …
Free account benefits
Turn practice into measurable progress
Public PYQs and reference pages stay free. Sign in when you want GATEverse to remember what you studied and guide what to practise next.
Saved progressKeep answers, mock results and completion history across devices.
Adaptive practiceGet questions matched to your recent accuracy and difficulty level.
Bookmarks and notesBuild a personal revision list and record why a question was difficult.
Performance insightsSee weak subjects, accuracy trends, streaks and exam readiness.